Qt电子相册

目录

项目要求

项目实现

 ui设计

代码

dialog.h

dialog.cpp

源码

项目要求

基于作业3.0，增添以下功能：

1. 优化图片和代码逻辑
2. 增加自动翻页功能
3. 增加试试手气功能

项目实现

 ui设计

代码

dialog.h

#ifndef DIALOG_H
#define DIALOG_H

#include <QDialog>
#include <QPixmap>
#include <QSize>
#include <QList>
#include <QDebug>
#include <QTimer>
#include <QDateTime>
#include <ctime>

namespace Ui {
class Dialog;
}

class Dialog : public QDialog
{
    Q_OBJECT

public:
    explicit Dialog(QWidget *parent = 0);
    ~Dialog();

private:
    Ui::Dialog *ui;
    QList<QString> path;
    QTimer *timer;
    int id;

private slots:
    void nextSlot(); //向下翻页的槽函数
    void lastSlot(); //向上翻页的槽函数
    void zidongSlot();//自动翻页的槽函数
    void startSlot(); //启动自动翻页
    void stopSlot();  //停止自动翻页
    void suijiSlot(); //随机抽取
};

#endif // DIALOG_H

dialog.cpp

#include "dialog.h"
#include "ui_dialog.h"

Dialog::Dialog(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::Dialog),id(0),timer(new QTimer(this))
{
    ui->setupUi(this);

    path<<":/new/prefix1/111.jpg"<<":/new/prefix1/222.jpg"<<":/new/prefix1/333.jpg"<<":/new/prefix1/444.jpg";

    connect(ui->pushButton, SIGNAL(clicked()), this, SLOT(nextSlot()));
    connect(ui->pushButton_2, SIGNAL(clicked()), this, SLOT(lastSlot()));
    connect(ui->pushButton_3, SIGNAL(clicked()), this, SLOT(startSlot()));
    connect(ui->pushButton_4, SIGNAL(clicked()), this, SLOT(suijiSlot()));
    connect(ui->pushButton_5, SIGNAL(clicked()), this, SLOT(stopSlot()));

    srand(static_cast<unsigned>(time(0)));
    connect(timer, SIGNAL(timeout()), this, SLOT(zidongSlot()));
}

Dialog::~Dialog()
{
    delete ui;
}


void Dialog::nextSlot()
{
    id++;
    if (id == path.size())
    {
        id = 0;
    }
    qDebug() << "下一张";
    QPixmap pic(path.at(id));
    ui->label->setPixmap(pic);
}

void Dialog::lastSlot()
{
    id--;
    if (id < 0)
    {
        id = path.size() - 1;
    }
    qDebug() << "上一张";
    QPixmap pic(path.at(id));
    ui->label->setPixmap(pic);
}

void Dialog::zidongSlot()
{

    nextSlot();
}

void Dialog::startSlot()
{
    qDebug()<<"开启翻页";
    timer->start(1000);

}

void Dialog::stopSlot()
{
    qDebug()<<"停止翻页";
    timer->stop();
}

void Dialog::suijiSlot()
{
    id=rand() % path.size();
    QPixmap pic(path.at(id));
    ui->label->setPixmap(pic);
    qDebug() << "随机抽取";
}

源码

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